18691420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{84961}}^1$

素因数の和:84981

約数の個数: 24

約数和(自身を含む): 42820848

約数和(自身を除く): 24129428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 84961, 169922, 339844, 424805, 849610, 934571, 1699220, 1869142, 3738284, 4672855, 9345710, 18691420]

約数ペア:

[(1, 18691420), (2, 9345710), (4, 4672855), (5, 3738284), (10, 1869142), (11, 1699220), (20, 934571), (22, 849610), (44, 424805), (55, 339844), (110, 169922), (220, 84961)]